Steel braced frame composite column connection behavior

Yoshihiro Kimura, Gregory MacRae, Charles W. Roeder

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Concrete placed inside hollow steel tubular columns, which are part of braced frame structures, can significantly increase the axial strength and stiffness of these columns. However, in order for the contribution of the concrete in the columns to be taken advantage of, forces applied to the columns through the braces must be effectively distributed to the concrete. The connection details between the brace and column are the key aspects of ensuring that this distribution occurs. Past connection designs vary widely, and their seismic behavior is uncertain. An analytical and experimental study is being carried out at the University of Washington to describe the behavior of these connections and their impact on global performance. As part of this study, an analytical study of the joint is carried out which is described in this paper. It is shown that for connections which involve a through-plate, the majority of the force is transferred into the concrete from the steel by bearing, rather than by friction. Also, slip deformations between the steel and concrete are too small to mobilize the strength of shear studs which may be used in the connection.

Original languageEnglish
Title of host publicationStructures - A Structural Engineering Odyssey, Structures 2001 - Proceedings of the 2001 Structures Congress and Exposition
DOIs
Publication statusPublished - 2004 Dec 1
Externally publishedYes
Event2001 Structures Congress and Exposition, Structures 2001 - Washington, DC, United States
Duration: 2001 May 212001 May 23

Publication series

NameStructures - A Structural Engineering Odyssey, Structures 2001 - Proceedings of the 2001 Structures Congress and Exposition
Volume109

Other

Other2001 Structures Congress and Exposition, Structures 2001
CountryUnited States
CityWashington, DC
Period01/5/2101/5/23

Keywords

  • Composite columns
  • Connections
  • Steel frames

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Mechanics of Materials
  • Safety, Risk, Reliability and Quality
  • Building and Construction

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  • Cite this

    Kimura, Y., MacRae, G., & Roeder, C. W. (2004). Steel braced frame composite column connection behavior. In Structures - A Structural Engineering Odyssey, Structures 2001 - Proceedings of the 2001 Structures Congress and Exposition (Structures - A Structural Engineering Odyssey, Structures 2001 - Proceedings of the 2001 Structures Congress and Exposition; Vol. 109). https://doi.org/10.1061/40558(2001)173